On this week's Intelligence, Cybercom gets called in to investigate a potential terrorist attack when one of the most secure databases is hacked. "Cain and Gabriel" is even more intense for the agents with a loved one in danger. Will Gabriel and Riley be able to stop the chemical attack?

Gabriel and the Cybercom team head to San Francisco to stop the deadly attack. Check out following preview and sneak peek.

Lillian's personally affected when they set out to stop a terrorist attack in San Francisco. Her daughter lives there. The best way to protect her daughter is to stop the attack.

"Cain and Gabriel" Sneak Peek

There's a new threat and it's a dangerous one. Two criminals in witness protection are involved in a terrorist plot. One is a mafia Bagman and the other is a Chechen chemist. They were brought together by someone to carry out the plan.

The Bagman's cover was working as an exterminator, which allowed him access to buy the chemicals needed. And, the Chechen has the skills to put together the compounds. Someone knew they were in witness protection and brought them together.

Lillian believes it's not in inside job, rather someone hacked the database. Once they had the candidates the perpetrator forced the Bagman and the Chemist into cooperation. Given the half-life of the chemicals, the explosion will happen within 48 hours.

Gabriel tracks their van to San Francisco and they head off to stop the attack.